How to Secure Your RDP Server from Hackers and Unauthorized Users

Remote Work is now commonplace across the globe. Each person utilizing remote work processes and being remote has a distinct challenge, depending upon whether he or she is an enterprise owner, manages remote employees or manages IT operations. Each individual has the ability to utilize a dependable RDP server to simplify work. Further, allowing your company to have remote access means that you must take the security of that connection very seriously.

Hackers continuously scan the internet for weaknesses in remote desktop connections. A lack of adequate security protocols, systems, and network configurations for your RDP server could lead to data loss (e.g., through the exploitation of vulnerabilities), network downtime, ransomware, and/or unauthorized use of the RDP server. 

Quick Answer: How Do You Secure Your RDP Server from Hackers?

In order to effectively secure an RDP server from hackers, the best practice steps include limiting access, strong password/username combinations, enabling multi-factor authentication (MFA), enabling Network Level Authentication (NLA), monitoring login attempts, implementing firewall rules, and keeping of the RDP server updated. One must not allow remote access to the public internet. Allow access only through trusted IPs, VPNs, or secured gateway controls.

RDP Security Step	Why It Matters	Priority
Enable MFA	Adds a second login check	High
Use strong passwords	Reduces password attacks	High
Turn on NLA	Verifies users before connection	High
Restrict IP access	Blocks unknown locations	High
Monitor logins	Detects suspicious access early	Medium
Update the server	Fixes security gaps	High

Change Default Settings to Reduce Risk

Many server owners leave RDP settings exactly as they were after installation. While that may sound normal, default settings are often vulnerable to cyber attacks.

Here are some adjustments you should make immediately:

• Limit access to trusted IP addresses only
• Disable unused accounts and guest logins

• Restrict administrator access when not needed
• Avoid exposing RDP directly to the public internet
• Use a VPN or secure gateway for remote teams

These changes help reduce unnecessary online exposure. Many businesses that buy RDP online focus on performance and do not realize that the setup is just as important.

Use Strong Passwords and Account Lockout Policies

Here is where many people slip up. They set up RDP, pick a simple password because it is easier to remember, and move on. That is exactly the kind of opening attackers want.

The FBI and CISA issued a warning regarding brute-force attacks against unprotected RDP (Remote Desktop Protocol) endpoints being a significant risk to organizations due to ransomware. Having an account lockout policy in place protects against this threat by locking the user account after excessive failed logon attempts, usually between five and ten attempts per account.

Every account that has RDP access should have a long (greater than 12 characters), complex password containing upper and lower case letters, numbers and symbols. Reused passwords, shared passwords or simple administrative usernames are very easy to guess and should be avoided.

An account lockout policy will not only prevent multiple failed logins but will also hinder brute-force attacks and provide protection to your server when you’re not present. You can establish this in the Windows Server Local Security Policy settings. 

Turn On Network Level Authentication

NLA, or Network Level Authentication, should be enabled on every RDP server. It verifies your identity at the network level before a full remote desktop session is created. Without it, anyone can reach your login screen, which gives attackers more surface to work with.

With NLA turned on, only verified users get past the first checkpoint. Treat it as a basic setup step, not an optional feature.

Keep Your Server Updated and Patch Security Gaps

RDP security is not only about passwords and firewalls. Your server also needs regular updates. Outdated systems can contain known vulnerabilities that attackers already understand how to exploit. If you delay updates, your RDP server may stay exposed.

Maintenance Task	How Often to Check	Why It Helps
Windows updates	Weekly or monthly	Fixes known vulnerabilities
Account review	Monthly	Removes old access
Firewall review	Monthly	Keeps IP access accurate
Login review	Weekly	Spots suspicious attempts
Backup check	Monthly	Supports recovery

Monitor Login Activity and Server Access

Server security is not just about prevention. Monitoring matters too. You should always know who is accessing your server and when they are logging in.

By tracking login activity, you can detect suspicious behavior early. Failed login attempts, unknown IP addresses, logins outside work hours or sudden admin-level activity may be signs that someone is trying to break in.

Restrict Access Using IP Whitelisting and Firewall Rules

You do not need the entire internet to access your RDP port. You can limit RDP access to specific IP addresses if your team works from fixed locations. This improves virtual server security because even if someone gets your credentials, they cannot connect from an unknown location.

A solid firewall setup should allow only trusted IP ranges, block unknown sources at the network level and be reviewed regularly as your team or locations change.

If your team works from changing locations, use VPN or secured gateway access instead of open public RDP access. This protects the server while keeping remote work flexible.

Secure Access Starts With the Right Setup

RDP servers make remote work faster, smoother and more flexible. However, strong security should be part of the setup from the beginning. The stronger your protection approach is, the easier it becomes to secure your RDP server from hackers and prevent downtime, data issues and unauthorized access attempts.

When you buy RDP online, the infrastructure you start with matters a lot. If you want a robust setup for your server, contact DashRDP and explore our various plans available.